Joint assembly for shock absorbers and the like



Feb. 24, 1-942. 7 M. KATCHER 2,274,417

JOINT ASSEMBLY FOR SHOCK ABSORBERS AND THE LIKE Filed 0013. 10, 1958 2 Sheets-Sheet 1 Fig.

Mi 1 m INVENTOR Morris Mpy ATTORNEY Feb, 24, 1942. M. KATCHER 2,274,417

JOINT ASSEMBLY FOR SHOCK ABSORBERS AND THE LIKE vFiled Oct. 10, 1958 2 Sheets-Sheet 2 INVENTOR I Morris Kalchef ATTORNEY v Patented Feb. 24, 1942 JOINTASSEMBLY ronsnocx AND THE LIKE ABSORBERS Morris .Katcher, New m Y.

I Application October'lO, 1938, Serial No. 234,101

4 2 Claims.

This invention relates to a link and associated studs andmore particularly to a link and studs such as are used in a joint or shock absorber assemblage said link being commonly referred to as adrag or shock link. Such a linkhas-studs at each end mounted normally at rightangles to its longitudinal axis. The functioning of the link and studs requires a combined slight relative angular and relative torsional motion be tween the'link and the studs.

Instead of making the link of two pieces each of which is formed at its ends with one half of a cup or socket and bolting them together with the complementary cup par-ts over the heads of the studs and their dampening mechanism, as has been done heretofore, I amjenabled by my construction to make the link with its sockets of one piece. The head of my stud together with its dampening mechanism is inserted through an opening in the'socket large enough to pass said head and mechanism. Then said opening is closed by an inset or closure maintaining said parts in the cup. 'In one form, I use 'a rubber bushing for dampening and in another springs. Other related forms are tobe found in my applia cation. Serial no. 2 8 1321 now i Patent No. 2,236,062 dated March 25, 1941.

Other objects and advantages will become ap-- parentupen further study of the description and drawings, which Fig. l is a side elevation of a form of my sheet metal drag link having rubber bushings and wherein free ends of the sheet metal abut.

Fig. 2 is a section taken along the line 2-2 of Fig. 1. V i

Fig. 3 is a section taken along the line 3-3 of Fig. -1. p

Fig. 4 is a perspective view of the retaining inset for the-rubber bushing taken by itself.

. of Fig. '7.

Fig. 9 is a partial elevation and section of a form of link having a solid shank and rubber bushings.

' of Fig. 10.

'FigQ-12 is a partial side elevation of a form of lin'k having a solid shank and spring mountings,

' sorber assembly for an automobile.

. to a movable lever on the shock absorbing niech-j Fig. 10 isa partial side elevation of a form of 55 my sheet metal drag link having ings. o i

Fig. 1 1 is a section taken alongthe line-l -|l and of Fig. 12.

The link of Figs. 1 to 4 metal stamping comprising the tubular shank composition largely of rubber.

or slipped over the cylindrical head l8 of astud i=9. Studs ['9 usually form parts ofa shock abknown in the art, one of the studs is connected anism, while the other stud is fastened to a fixed portion of the frame of an automobile or other vehicle. Each stud IS with its bushing I! upon it is inserted in a socket l5 through its opening 24, the shank of the stud extending out- When at first inserted in socket I 5; bushing H extends out of the socket through opening 24. This extension is not seen in the drawings. taining inset 20 is then placed in the socket over bushing l'l forcing its extending portion back into the socket. The edge of the socket is then forced over to form flange 2| for retaining the inset in the socket and holding said bushing under compression. Inset 20 is provided with an apron 58 which comes between the cylindrical face of bushing l1 and the hollow interior of shank M. It prevents said bushing from spreading under compression into said shank. Notches 22 are indented in' the sides of shank H! for retaining apron 58 in place. Opening 59 is large enough to permit a substantial amount of free motion of stud l9 relative to the link.

The link of Figs. 5 and 6 is similar to the one described above, except that instead of having the free edges of the stamping substantially abut as at l6, Fig. 3, one of said edges overlaps the other to form a seam 23.

The link of Figs. 7 and 8 is similar to that of Figs. 5 and 6 except that the shape of shank Z5 spring mount- Fig. 13 is a section taken along the line l 3-I 3 is made of a sheet As is well rubber bushing 3| is held in place by the spun Bushing 3| fits over the head 33 of stud 34. Head 33 is in theform" over edge 32 of socket 29.

of a frustum of a cone, allowing more space in socket 29 for rubber. are inserted into socket 29 through opening 63. Instead of using tapered head 33 in a socket with a forged shank, it will be readily understood that such a head could be used in place of the cylin drical head I8 in a sheet metal construction as in Figs. 2 and7.

The link of Figs. 10 and 11 is made of a sheet metal stamping comprising the tubular shank v portion and drawn sockets one of which is shown at 36. The free edges of the stamping at the shank 35 are brought into substantial abutment at 31. This link, however, differs from the others in that no rubber bushing is used but instead a conical spiral spring 38. Stud 39 is provided with a cylindrical head 48 having a conical recess 4|. An inset42 is held in socket 36 by flange 43 which is formed by forcing over the edge of the socket. Spring 38, which is under compression, reacts against the inside of socket 36 at one end and against washer 44 at the other, said washer being mounted on head 46 opposite a shoulder formed thereon. Inset 42 has a depression 45 formed in it opposite recess 4| in head 48. Fitting in depression 45 on the one hand and recess 4| on the other is a ball bearing 46. Spring 38 causes ball bearing 46 to be squeezed between head 48 and inset 42. The action of ball bearing 46 together with depression 45, recess 4| and spring 38 is to maintain head 48 of stud 39 in position in socket 36and at the same time permit universal motionof said stud, which motion is resisted by the resilience of spring 38 and to a. certain extent by rubber grommet 41, al.- though this is not the essential function of the latter. Grommet 41, which surrounds stud 39 Bushing 3| and. stud v34 and fits in a hole in socket 36 and completely fills said hole, is provided for excluding dust from the interior of socket 36 and for preventing the escape of grease.

The link of Figs. 12 and 13 is forged having a socket 48 and a solid shank 49. Inset 50, which holds the head 5| of stud 52, together with conical spiral springs 53 and 54, in socket 48, is itself held in place by spun over edge 55 of socket 48. Head 5| is provided with a'fiange 56. Spring 53 is compressed between inset 50 and flange 56 on head 5|, while spring 54 is compressed between flange 56 and the inside face of socket 48. The

end of head 5| is rounded and fits in a rounded depression 51 in inset 58. This depression together with the action of springs 53 and 54 maintains head 5| of stud 52 in position in socket 48 a and at the same time permits universal motion of said stud which motion is resisted by the resilience of said springsand to a certain extent by rubber grommet 58. The grommet 58, however, as in the case of grommet 41, Fig. 11, is provided for excluding dust from the interior of socket 48 and for preventing the escape of grease.

The mechanism in socket 46 could also be used in socket 36, Fig. 11 instead of the mechanism shown in the latter. The reverse is also true.

I claim:

1. A joint comprising a socket having openings at opposite sides thereof, a shank attached to the socket, a member having a head in the socket and a shaft extending out of the socket through one of said openings, said head being in the form of a frustum of a cone with the end of the head farthest away from said one opening being the small end of the frustum, a bushing of rubber or the like substantially filling the socket around said head, said member and bushing being insertible into their position in the socket through the other of said openings, and an inset closing ofi said other opening. I

2. A joint comprising a socket having an opening at one side and a shank joined to the socket, a member projecting through said opening and having a head in the form of a frustrum of a cone in the socket with the end of the head located farthest from the opening being the small end of the frustrum, and a bushing of-rubber or the like substantially filling the socket around said head.

MORRIS KATCHER. 

